Electrical suppressor filter

Abstract

An electrical suppressor filter is disclosed which has a filter housing, a circuit board arranged within the housing, electrical components electrically connected to the circuit board and power connection plugs extending through the housing wall and electrically connected to the circuit board. The power connection plugs have integral legs extending into the interior of the housing which are both mechanically and electrically connected to the circuit board.

What is claimed is: 
     
       1. An electrical suppressor filter comprising: a filter housing including a housing cover, a circuit board located within the housing, and electrical components electrically connected to the circuit board, power connection plugs mounted in the housing wall, said power connection plugs having integral legs that are flat and L-shape and extend through said housing wall into the interior of said housing; said circuit board being adapted to fit over the end portion of said legs; and said circuit board having electrical conductors which are electrically connected to said legs and said circuit board is supported by said legs before the housing cover is mounted on the filter housing. 
     
     
       2. The filter defined in claim 1, wherein a sealing compound occupies the region between the housing and the printed circuit board, and the region includes the electrical components. 
     
     
       3. The filter defined in claim 1, wherein at least one of said power connection plugs is constructed as an appliance plug having at least one plug connector, said plug connector having a plug pin extending outwardly with respect to said housing and a flat leg integral with and extending within said housing at a right angle to said plug pin. 
     
     
       4. The filter defined in claim 1, wherein said legs of said power connection plugs have stepped ends, each forming a projection extending from a face edge of the corresponding end, and wherein said projections at the ends of said legs are inserted in slots in said circuit board with said face edges serve as supports for said circuit board. 
     
     
       5. The filter defined in claim 4, wherein said projections inserted in said slots of said circuit board are soldered to said electrical conductors of said circuit board. 
     
     
       6. The filter defined in claim 1, wherein said legs are soldered to said electrical conductors of said circuit board. 
     
     
       7. The filter defined in claim 1, wherein at least one Y-capacitor is mounted on said circuit board for shunting high-frequency interference currents, said Y-capacitor being grounded via an electrical conductor on said circuit board and a flexible, band-shaped, conductive strap extending out of the housing interior from said electrical conductor and connected electrically with said housing. 
     
     
       8. The filter defined in claim 7, wherein said housing includes a housing box and a housing cover, and wherein said conductive strap is clamped between said box and said cover. 
     
     
       9. The filter defined in claim 7, wherein said conductive strap is ultrasonically welded to said housing. 
     
     
       10. The filter defined in claim 7, wherein said strap is made of copper. 
     
     
       11. The filter defined in claim 1, wherein said housing is shaped in a box and said cover has integral extensions with holes therein for fastening said housing to a supporting surface. 
     
     
       12. A suppressor filter bank comprising a plurality of filters as defined in claim 1, wherein said filters have differing attenuation characteristics defined by the electrical components therein, wherein said housings and said circuit boards of said filters all have the same width but have different lengths depending upon the respective attenuation characteristics of said filters. 
     
     
       13. The filter bank defined in claim 12, wherein said housing of each filter comprises a housing box and a housing cover, said housing cover having integral, strap-like extensions for fastening said housing to a supporting surface, and wherein said extension lie in a plane which is offset and parallel to the plane of said housing cover. 
     
     
       14. The filter bank defined in claim 13, wherein the distance between said circuit board and said housing cover is the same in each of said filters, this distance being defined by the lengths of said legs and the positions of the openings in said housing wall for penetration of said power connection plugs.